2154435434 has 8 divisors (see below), whose sum is σ = 3231850080. Its totient is φ = 1077152076.

The previous prime is 2154435391. The next prime is 2154435499. The reversal of 2154435434 is 4345344512.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a junction number, because it is equal to n+sod(n) for n = 2154435394 and 2154435403.

It is an unprimeable number.

It is a polite number, since it can be written in 3 ways as a sum of consecutive naturals, for example, 49187 + ... + 82025.

It is an arithmetic number, because the mean of its divisors is an integer number (403981260).

Almost surely, 2^2154435434 is an apocalyptic number.

2154435434 is a deficient number, since it is larger than the sum of its proper divisors (1077414646).

2154435434 is a wasteful number, since it uses less digits than its factorization.

2154435434 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 65644.

The product of its digits is 115200, while the sum is 35.

The square root of 2154435434 is about 46415.8963502807. The cubic root of 2154435434 is about 1291.5498136806.

Adding to 2154435434 its reverse (4345344512), we get a palindrome (6499779946).

The spelling of 2154435434 in words is "two billion, one hundred fifty-four million, four hundred thirty-five thousand, four hundred thirty-four".